taking care of resources

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Across
  1. 1. objects or materials made by humans.
  2. 8. something that remains after the rest has been used.
  3. 9. resources that cannot be renewed in a natural way after they have been used up.
  4. 10. resource, materials that do not come directly from nature but are processed. This means that these materials are made by humans.
  5. 14. waste material.
  6. 15. materials, elements or things needed by humans.
  7. 18. things that are able to decompose naturally in a short amount of time.
  8. 20. material that after being used or extracted, have the capacity to regenerate.
Down
  1. 2. things that take a long time to decompose.
  2. 3. break down in very small and simpler pieces that finally mixes with the soil.
  3. 4. place where the trash or waste of a town is gathered or stored.
  4. 5. resource, materials that humans take from nature and use for their benefit.
  5. 6. leftovers of man-made materials.
  6. 7. leftovers of living things such as leaves, fruit and vegetable peels, branches, and food.
  7. 11. out, something that is used up completely.
  8. 12. to cut a whole forest without caring.
  9. 13. synonym of waste or trash.
  10. 16. not used in an appropriate way.
  11. 17. material that is eliminated as no longer useful.
  12. 19. to contaminate or throw garbage to the floor, water or air.